USM Video: Difference between revisions
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// big endian | // big endian | ||
// | // CRID chunk | ||
4 bytes (char) - signature // "CRID" | 4 bytes (char) - signature // "CRID" | ||
4 bytes (uint32) - | 4 bytes (uint32) - chunk size | ||
crid_chunk_data | |||
{ | |||
1 byte - unknown // always 0x00? | |||
1 byte (uint8) - payload offset | |||
2 bytes (uint16) - padding size | |||
} | |||
//TODO | //TODO | ||
Revision as of 21:32, 1 October 2021
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USM
- Format Type : Video
- Endian Order : Big Endian
- Signature : CRID
Format Specifications
// USM video file format
// big endian
// CRID chunk
4 bytes (char) - signature // "CRID"
4 bytes (uint32) - chunk size
crid_chunk_data
{
1 byte - unknown // always 0x00?
1 byte (uint8) - payload offset
2 bytes (uint16) - padding size
}
//TODO
MultiEx BMS Script
Not written yet.
Notes and Comments
- Some *.USM files are encrypted using a 64 byte key (like HCA)
Games
List of games using this file format:
- Genshin Impact (*.USM) (encrypted?)
- NEO: The World Ends with You (*.USM) (encrypted?)
- Persona 5 Royal (*.USM) (encrypted, more info here)
- The Witcher 2 (PC) (*.USM)
- The Witcher 3: Wild Hunt (PC) (*.USM)
Compatible Programs
- Scaleform_VideoEncoder.zip / mirror1
- VGMToolbox
- FFmpeg
- CRID Demux Tool (CRID USM extractor) (+ source code) / mirror1
- UsmToolkit
- UsmDemuxer
- utf_tab (+ source code)
See Also